Carey (5-foot-9, 207 pounds) emerged as a playmaker in Rich Rodriguez's spread offense at Arizona the past two seasons. That amounted to 3,814 rushing yards and 42 TDs and 5.8 yards per carry. He also led the NCAA with 652 carries and totaled 22 games with 100 or more rushing yards in that two-year stretch.

Carey didn't exactly wow at the NFL Combine; he ran a 4.70 in the 40, and there will be concerns about how his game translates in a more traditional offense. Carey's niche early might be as a third-down back; he averaged 31 receptions for the Wildcats from 2012-13.

Unfortunately, going to the Bears won't afford Carey much fantasy value. He'll be a must-have handcuff -- and if anything happens to Matt Forte, he could be a stud -- but he's not the short-yardage back Michael Bush was, so you can't even expect Carey to steal touchdowns. His preseason performance could go a long way in determining his role/value.